1(2H)-Quinolinecarboxylic acid, ethyl ester → N-Boc-pyrrolidine

Participants

Reaction Steps

4-Amino-N-(4-amino-phenyl)-benzamide (3.00 g) and pyrrolidine-1,2-dicarboxylic acid 1-tert-butyl ester (6.55 g) were dissolved in DCM (90 mL), and 1-ethoxycarbonyl-1,2-dihydroquinoline (7.88 g) was added. The reaction mixture was stirred at ambient temperature for 17 hours and evaporated under vacuum. Oil was dissolved in ethyl acetate, forming a precipitate, which was collected by vacuum filtration and dried under vacuum, giving 2-(4-{-4-[(pyrrolidine-1′-carboxylic acid tert-butyl ester)-phenylcarbamoyl}-phenylcarbamoyl)-pyrrolidine-1-carboxylic acid tert-butyl ester (7.64 g, 93%) as a white solid.

Provenance & Evidence